YORKSHIRE NATURALISTS’ UNION 
VERTEBRATE SECTION. 
President of the Section : — H. B. Booth, Esq., M.B.O.U., F.Z.S. 
Two Meetings will be held in Room C~ at the Leeds Institute, Leeds, at 3-15 p.m 
and 6-30 p.m. respectively, on Saturday, February 21st, 1914. 
Business : — 
To appoint Bird Watchers for 1914, and discussion upon other matters ir 
connection with the Yorkshire Wild Birds’ and Eggs' Protection Acts Committee. 
Papers (mostly illustrated by lantern slides or specimens) will be given as follows— 
“ The Wanderings of Sea Fishes,” Professor W. Garstaxg. 
“ Further Notes from Spain,” Dr. E. S. Steward, F.R.C.S., M.B.O.U 
" The Home-life of the Merlin,” Mr. E. VV. Taylor. 
“ Further Notes on the Stone Curlew,” Mr. E. W. Wade, M.B.O.U. 
A discussion, “Are the Guillemots decreasing on the Yorkshire Coast,” will bi 
introduced by Mr. Wm, Hewett. 
Any - Member or Associate of the Y.N.U. is invited «to attend and to bring notes 
specimens, lanterns slides, etc., and is requested to bring forward matters of interes 
connected with the work of the Section, and to take part in any discussion. 
Will officials of Affiliated Societies kindly notify their Members ? 
Any further particulars from : — 
A. HAIGH-LTTMBY (Hon. Sec.), 
Nab Drive, Shipley. 
NOTES ON 
THE BLUE-GREEN ALG/E 
With a Key to the Species of Oseillatoria and Phormidium. 
By Harold Wager, F.R.S. 
48 pages printed and 16 pages blank Jor additional notes , size small crovin 8 vo, 
neatly printed, and strongly bound in dark blue cloth rcith gilt lettering on back 
and side. 
2/6 net. Post free 2/8 net. 
CONTENTS. 
General Description of the Blue-Green Algae ; Structure of the Cell ; Chlorophyll 
and other Colouring Matters ; Cell Membrane and Sheath ; Glycogen and its Forma 
ation ; Cell Division ; Reproduction ; Classification ; Key to Orders and Families 
Key. to Genera of Oscillatoriaceie ; Key to Specimen of Oseillatoria and Phormidium 
Glossary ; Index to Species. 
LONDON : 
A. BROWN & SONS, LTD., 5 Farringdon Avenue, E.C. 
And at HULL and YORK. 
